CN109291466A - A kind of forming method of big chamfering honeycomb sandwich construction part - Google Patents
A kind of forming method of big chamfering honeycomb sandwich construction part Download PDFInfo
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- CN109291466A CN109291466A CN201811009031.8A CN201811009031A CN109291466A CN 109291466 A CN109291466 A CN 109291466A CN 201811009031 A CN201811009031 A CN 201811009031A CN 109291466 A CN109291466 A CN 109291466A
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- honeycomb
- paving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of forming methods of big chamfering honeycomb sandwich composite structural member.The present invention includes: to carry out cured thickness to prepreg to grope to test；Thickness in monolayer is surveyed, using the out pocket face of formpiston as mold face, designs female mould forming tooling；The paving honeycomb upper surface laying in female mould forming tooling, and solidified by prepreg cure profile；Numerical control processing honeycomb；Cured honeycomb upper surface laying is placed in female mould forming tooling, the good honeycomb of numerical control processing is placed in the laying of honeycomb upper surface, it is preforming to paste vacuum bag progress honeycomb medium temperature；The preforming honeycomb of medium temperature will be completed to take out, one layer of structural film adhesive of paving in cured honeycomb upper surface laying, and be put into and the preforming honeycomb of medium temperature is completed, pastes vacuum bag and carry out hot compaction；One layer of structural film adhesive of paving on honeycomb, and continue paving honeycomb lower surface laying；Mixing cover board is placed above the laying of honeycomb lower surface, is pasted vacuum bag, is solidified by prepreg cure profile.
Description
Technical field
The invention belongs to manufacture technology of composite material, are related to a kind of molding of big chamfering honeycomb sandwich composite structural member
Method.
Background technique
Honeycomb core has high rigidity and great weight loss effect, commonly used on aircaft configuration.Honeycomb presss from both sides at present
Layer composite element is all made of male mould forming, and when chamfering is larger (45 ° of general >), component after molding honeycomb easily occurs and returns
The defects of contracting, collapse, sliding.Include: to the improvement invention of disadvantages described above in the recent period
1. a kind of honeycomb cladding spicing forming type method (application number: CN201710481202.6): in the thickness side of honeycomb core
To layering, subregion splicing is carried out to every layer of honeycomb core, preforming, the lateral resistance to compression of raising honeycomb core is spliced by honeycomb core cladding
Power.The invention is suitable for the manufacture of the larger honeycomb interlayer part of thickness, but since the ability of honeycomb core chamfering collapse sliding depends on
With the monolayer honeycomb core separated, 30 ° are not preferably greater than using the honeycomb core chamfering of the technique.
2. prevent honeycomb core from collapsing composite honeycomb sandwich structures product forming method (application number:
CN201710281772.0): using first honeycomb core blank and cured exterior skin are glued, carrying out glue in paving inside panel
Connect the process program of co-curing, the surrounding end surfaces of honeycomb core blank vertical exterior skin type face section, when splicing installs composite wood
Expect that sandwich structure process retaining ring tooling protects honeycomb core blank, the slope of honeycomb core peripheral portion is reprocessed after the completion of being glued.
The invention can effectively prevent molding when honeycomb core product and exterior skin between sliding, but honeycomb core processing slope after without it is any its
Its measure protection and inside panel are glued, and unsuitable blocked up using the honeycomb core of the technique, chamfering should not be too large.
3. a kind of segmented honeycomb sandwich construction (application number: CN201410592470.1): the end at the oblique angle of honeycomb core
The laying being laid in the laying and oblique angle being laid on face is segmented, i.e. the bottom that extends only to oblique angle of laying on end face,
Laying on oblique angle is laid with since the top at oblique angle, and the two is lap joint form at oblique angle.This technical solution solves
In the prior art, the technical issues of honeycomb core easily slides around when by molded.The invention does not have collapsing for honeycomb core
Effect.
There is above description to can be seen that even if using improved method as above, honeycomb sandwich construction part larger for chamfering
Improvement is also limited.
Summary of the invention
The purpose of the present invention is: the present invention cannot be before not changing laying, unobvious weight gain for existing male mould forming
It puts and molds the shortcomings that chamfering is larger, surface quality preferable honeycomb sandwich construction part, devise a kind of female mould forming method.Its
Purpose is:, can be in the big chamfering of larger forming under the pressure (45 ° of >) honeycomb sandwich construction under the premise of not changing design drawing
Part remains the loss of weight advantage of honeycomb sandwich construction to greatest extent, simplifies operation, ensure that the stability of Forming Quality.
The technical scheme is that a kind of forming method of big chamfering honeycomb sandwich composite structural member, including with
Lower step:
1) cured thickness is carried out to the prepreg that design is selected to grope to test；
2) thickness in monolayer is surveyed according to the prepreg that the test in step 1) obtains, using the out pocket face of formpiston as mold face,
Design female mould forming tooling；
3) the paving honeycomb upper surface laying in female mould forming tooling, and solidified by prepreg cure profile；
4) numerical control processing honeycomb；
5) honeycomb upper surface laying cured in step 3) is placed in female mould forming tooling, numerical control in step 4)
The honeycomb processed is placed in honeycomb upper surface laying cured in step 3), paste vacuum bag carry out honeycomb medium temperature in advance at
Type；
6) the preforming honeycomb of medium temperature will be completed in step 5) to take out, the cured honeycomb upper surface paving in step 5)
One layer of structural film adhesive of paving on layer, and be placed in and the preforming honeycomb of medium temperature is completed in step 5), wherein honeycomb chamfered area
One layer of expansion glue film of paving.It pastes vacuum bag and carries out hot compaction；
7) one layer of structural film adhesive of paving on the honeycomb of hot compaction is completed in step 6), and continues paving honeycomb lower surface
Laying；
8) mixing cover board is placed above the honeycomb lower surface laying in step 7), pastes vacuum bag, is solidified by prepreg
Curve is solidified.
Further, in the step 4), the cellular length and width being process is 1mm smaller than respective theoretical value respectively.
Further, the bottom of the mixing cover board is cured silica gel, and upper layer is carbon fibre composite stiff cover plate.
It is fallen the invention has the advantages that the present invention realizes molding under the premise of not changing component laying, unobvious weight gain
The biggish composite honeycomb sandwich structures part in angle forms the defects of rear part at honeycomb chamfering without bouncing back, collapsing, slide, and protects
Inside and the surface quality of component are demonstrate,proved.
Detailed description of the invention
Fig. 1 is general composite honeycomb sandwich structures part schematic diagram；
Fig. 2 is one composite honeycomb sandwich structures part schematic diagram of embodiment；
Fig. 3 is two composite honeycomb sandwich structures part schematic diagram of embodiment；
Fig. 4 is female mould forming tooling schematic diagram；
Fig. 5 is the paving honeycomb upper surface laying schematic diagram in former tooling；
Fig. 6 is the preforming schematic diagram of honeycomb；
Fig. 7 is the paving honeycomb schematic diagram in former tooling；
Fig. 8 is the paving honeycomb lower surface laying schematic diagram in former tooling；
Fig. 9 is the laying cover plate schematic diagram in former tooling.
Wherein, 1- female mould forming tooling, 2- honeycomb upper surface laying, 3- expand glue film, 4- structural film adhesive, 5- numerical control processing
Honeycomb, the cured silicon rubber of 6- honeycomb lower surface laying, 7- non-porous release film, 8-, 9- composite material cover board.
Specific embodiment
Technical solution of the present invention is further described below with reference to drawings and examples.
The operating procedure of honeycomb sandwich construction part forming method of the present invention is as illustrated in the examples below.
Embodiment one:
1) composite honeycomb sandwich structures part as shown in Fig. 2, honeycomb with a thickness of 60mm, chamfering is respectively 58 °, 70 °,
75 ° and 90 °；
2) it carries out cured thickness to prepreg CYCOM 970/PWC T300 3K IT to grope to test, actual measurement monolayer immobilization is thick
Degree is 0.216mm；
3) thickness in monolayer is surveyed according to prepreg, using the out pocket face of formpiston as mold face, designs female mould forming tooling 1, such as 4
It is shown；
4) the paving honeycomb upper surface laying 2 in female mould forming tooling 1, and solidified by prepreg cure profile, such as
Shown in Fig. 5；
5) numerical control processing honeycomb 5, the cellular length and width being process are 1mm smaller than respective theoretical value respectively；
6) cured honeycomb upper surface laying 2 is placed in female mould forming tooling 1, and the good honeycomb 5 of numerical control processing is put
It sets in cured honeycomb upper surface laying 2,1 layer of non-porous release film is placed on honeycomb 5, one using LTM12 manufacture
The composite material cover board of 1mm thickness, pastes vacuum bag, as shown in Figure 6.Solidify 90min under 115 DEG C, 0.1MPa, it is pre- to carry out honeycomb
Molding；
7) preforming honeycomb 5 will be completed to take out, one layer of paving in cured honeycomb upper surface laying 2
METLBOND1515-4M.050PSF glue film 4, and preforming good honeycomb 5 is placed in female mould forming tooling 1, wherein honeycomb
5 one layer of chamfered area paving LOCTITE EF, 562 50M AERO glue film 3, as shown in Figure 7；
8) 1 layer of non-porous release film of placement on honeycomb 5, the composite material cover board of a 1mm thickness using LTM12 manufacture,
Vacuum bag is pasted, solidifies 30min under 65 DEG C, 0.1MPa, carries out hot compaction；
9) one layer of METLBOND of paving, the 1515-4M.050PSF glue film 4 on the honeycomb 5 that hot compaction is completed, and continue
Paving honeycomb lower surface laying 6, as shown in Figure 8；
10) one layer of non-porous release film of paving in honeycomb lower surface laying 6, one layer of cured silicon rubber COHRlastic
Silicone Rubber Press Pads 3320 (1.59mm) 8, a 2mm using EL201/HFW650T/34 manufacture is thick
Composite material cover board 9, as shown in Figure 9；
11) solidified after pasting vacuum bag by prepreg cure profile.
Embodiment two:
1) composite honeycomb sandwich structures part as shown in figure 3, honeycomb with a thickness of 30mm, chamfering is respectively 37 °, 48 °,
45 °, 51 °, 67 ° and 62 °；
2) it carries out cured thickness to prepreg CYCOM 970/PWC T300 3K IT to grope to test, actual measurement monolayer immobilization is thick
Degree is 0.216mm；
3) thickness in monolayer is surveyed according to prepreg, using the out pocket face of formpiston as mold face, designs female mould forming tooling 1, such as
Shown in Fig. 4；
4) the paving honeycomb upper surface laying 2 in female mould forming tooling 1, and solidified by prepreg cure profile, such as
Shown in Fig. 5；
5) numerical control processing honeycomb 5, the cellular length and width being process are 1mm smaller than respective theoretical value respectively；
6) cured honeycomb upper surface laying 2 is placed in female mould forming tooling 1, and the good honeycomb 5 of numerical control processing is put
It sets in cured honeycomb upper surface laying 2,1 layer of non-porous release film is placed on honeycomb 5, one using LTM12 manufacture
The composite material cover board of 1mm thickness, pastes vacuum bag, as shown in Figure 6.Solidify 90min under 115 DEG C, 0.1MPa, it is pre- to carry out honeycomb
Molding；
7) preforming honeycomb 5 will be completed to take out, one layer of paving in cured honeycomb upper surface laying 2
METLBOND1515-4M.050PSF glue film 4, and preforming good honeycomb 5 is placed in female mould forming tooling 1, wherein honeycomb
One layer of LOCTITE EF of chamfered area paving, 562 50M AERO glue film 3, as shown in Figure 7；
8) 1 layer of non-porous release film of placement on honeycomb 5, the composite material cover board of a 1mm thickness using LTM12 manufacture,
Vacuum bag is pasted, solidifies 30min under 65 DEG C, 0.1MPa, carries out hot compaction；
9) one layer of METLBOND of paving, the 1515-4M.050PSF glue film 4 on the honeycomb 5 that hot compaction is completed, and continue
Paving honeycomb lower surface laying 6, as shown in Figure 8；
10) one layer of non-porous release film of paving in honeycomb lower surface laying 6, one layer of cured silicon rubber COHRlastic
Silicone Rubber Press Pads 3320 (1.59mm) 8, a 2mm using EL201/HFW650T/34 manufacture is thick
Composite material cover board 9, as shown in Figure 9；
11) solidified after pasting vacuum bag by prepreg cure profile.
Claims (4)
1. a kind of forming method of big chamfering honeycomb sandwich composite structural member, it is characterized in that the forming method includes following
Step:
1) cured thickness is carried out to the prepreg that design is selected to grope to test；
2) thickness in monolayer is surveyed according to the prepreg that the test in step 1) obtains, using the out pocket face of formpiston as mold face, design
Female mould forming tooling；
3) the paving honeycomb upper surface laying in female mould forming tooling, and solidified by prepreg cure profile；
4) numerical control processing honeycomb；
5) honeycomb upper surface laying cured in step 3) is placed in female mould forming tooling, numerical control processing in step 4)
Good honeycomb is placed in honeycomb upper surface laying cured in step 3), and it is preforming to paste vacuum bag progress honeycomb medium temperature；
6) the preforming honeycomb of medium temperature will be completed in step 5) to take out, in step 5) in cured honeycomb upper surface laying
One layer of structural film adhesive of paving, and be placed in and the preforming honeycomb of medium temperature is completed in step 5), wherein honeycomb chamfered area paving
One layer of expansion glue film；It pastes vacuum bag and carries out hot compaction；
7) one layer of structural film adhesive of paving on the honeycomb of hot compaction is completed in step 6), and continues paving honeycomb lower surface paving
Layer；
8) mixing cover board is placed above the honeycomb lower surface laying in step 7), vacuum bag is pasted, by prepreg cure profile
Solidified.
2. forming method according to claim 1, it is characterized in that: in the step 4), the cellular length that is process,
It is wide 1mm smaller than respective theoretical value respectively.
3. forming method according to claim 1, it is characterized in that: the bottom of the mixing cover board is cured silica gel.
4. forming method according to claim 3, it is characterized in that: the upper layer of the mixing cover board is carbon fiber composite
Expect stiff cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009031.8A CN109291466B (en) | 2018-08-30 | 2018-08-30 | Forming method of large-chamfer honeycomb sandwich structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811009031.8A CN109291466B (en) | 2018-08-30 | 2018-08-30 | Forming method of large-chamfer honeycomb sandwich structural member |
Publications (2)
| Publication Number | Publication Date |
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| CN109291466A true CN109291466A (en) | 2019-02-01 |
| CN109291466B CN109291466B (en) | 2020-10-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706585A (en) * | 2020-05-15 | 2020-09-25 | 成都飞机工业（集团）有限责任公司 | Reverse gluing method for sheet aluminum alloy basin-shaped part |
| CN113635615A (en) * | 2021-07-30 | 2021-11-12 | 中国航空工业集团公司济南特种结构研究所 | Preparation process method of 90-degree chamfer honeycomb sandwich structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0649736A1 (en) * | 1993-10-22 | 1995-04-26 | Etablissements Manducher | Motor vehicle back shelf and method for its manufacture |
| TW264428B (en) * | 1992-12-23 | 1995-12-01 | Sulzer Thermtec Ag | |
| CN105235233A (en) * | 2015-10-12 | 2016-01-13 | 湖北三江航天红阳机电有限公司 | Method for designing and manufacturing ventilation channel of honeycomb sandwich structure |
| CN105538743A (en) * | 2014-10-28 | 2016-05-04 | 哈尔滨飞机工业集团有限责任公司 | Honeycomb second pre-molding method |
| CN105619833A (en) * | 2014-10-28 | 2016-06-01 | 哈尔滨飞机工业集团有限责任公司 | Forming method capable of preventing honeycomb retraction |
| CN106863874A (en) * | 2017-03-06 | 2017-06-20 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of honeycomb method for shaping of complex-curved honeycomb sandwich construction |
-
2018
- 2018-08-30 CN CN201811009031.8A patent/CN109291466B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW264428B (en) * | 1992-12-23 | 1995-12-01 | Sulzer Thermtec Ag | |
| EP0649736A1 (en) * | 1993-10-22 | 1995-04-26 | Etablissements Manducher | Motor vehicle back shelf and method for its manufacture |
| CN105538743A (en) * | 2014-10-28 | 2016-05-04 | 哈尔滨飞机工业集团有限责任公司 | Honeycomb second pre-molding method |
| CN105619833A (en) * | 2014-10-28 | 2016-06-01 | 哈尔滨飞机工业集团有限责任公司 | Forming method capable of preventing honeycomb retraction |
| CN105235233A (en) * | 2015-10-12 | 2016-01-13 | 湖北三江航天红阳机电有限公司 | Method for designing and manufacturing ventilation channel of honeycomb sandwich structure |
| CN106863874A (en) * | 2017-03-06 | 2017-06-20 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | A kind of honeycomb method for shaping of complex-curved honeycomb sandwich construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706585A (en) * | 2020-05-15 | 2020-09-25 | 成都飞机工业（集团）有限责任公司 | Reverse gluing method for sheet aluminum alloy basin-shaped part |
| CN113635615A (en) * | 2021-07-30 | 2021-11-12 | 中国航空工业集团公司济南特种结构研究所 | Preparation process method of 90-degree chamfer honeycomb sandwich structure |
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| CN109291466B (en) | 2020-10-20 |
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